ACT Science

I know that this has definitely been discussed before, but what are some ways to boost my ACT science score??? I can’t finish the test on time–I’m always left with 10-15 questions that I haven’t looked at yet. Some people say not to read the passage and to go straight to the questions, but for some topics, I can’t do that, because I get confused without the background information surrounding an experiment/viewpoint.

All of my other sections are MUCH higher, but I have so much trouble with science, because there just isn’t enough time. Any thoughts?

Thanks!